Our world currently has 33 megacities – cities of populations of over 10 million. As these sprawling urban centres become more crowded, infrastructure is under pressure to bear more load and last longer. In this podcast, we explore why understanding the composition of the ground beneath our feet is vital for safe infrastructure and how geophysical data can help.
We also visit Istanbul, a megacity that has invested billions in its transport network to support demand from its 15 million inhabitants, and find how subsea seismic investigations ensured new bridges and tunnels were built safely.
This episode was made in partnership with Engineering Matters.